<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
<style>
h2,
p {
    margin: 0;
}    
.box {
    margin: 30px auto;
    width: 300px;    
}
#user,
#message {
    box-sizing: border-box;
    width: 300px;
    border: 1px solid #000;
    padding: 10px;
    height: 100px;
    resize: none;
    display: block;
}
#user {
    padding: 0 10px;
    height: 30px;
    margin-bottom: 10px;
}
#btn {
    display: block;
    margin: 10px auto;
    width: 60%;
    height: 40px;
}
#list {
    border-top: 1px solid #000;
    padding: 10px 0 0;
    margin: 0;
    list-style: none;
}
#list li {
    position: relative;
    font: 14px/30px "宋体";
    border-bottom: 1px solid #000;
    padding: 0 15px;
    overflow: hidden;
}
.clos {
    position: absolute;
    right: 5px;
    top: 10px;
}
.clos2 {
    position: absolute;
    right: 5px;
    top: 30px;
}
/* .replay{
    position:absolute;
    right: 5px;
    top: 35px;
} */
.mask{
    width: 100vw;
    height: 100vh;
    background: black;
    opacity: .3;
    position: absolute;
    left: 0;
    top: 0;
    display: none;
}
.comfirm{
    width: 200px;
    height: 120px;
    background: white;
    text-align: center;
    position: absolute;
    left: 50%;
    top: 30%;
    border-radius: 5px;
    transform: translate(-50%,-50%);
    overflow: hidden;
    display: none;
    
}
.comfirm button{
    /* position: absolute; */
    /* right: 10px; */
    float:right;
    margin-top: 20px;
    margin-right: 10px;
}
.replay{
    display: none;
}


</style>
</head>
<body>
<div class="box">
    <input type="text" id="user" value="小明" />
    <textarea id="message">我就是传说中的无敌小明</textarea>
    <button id="btn">提交留言</button>
    <ul id="list">
        <li style="height: auto">
            <h2 class="user">小王说:</h2>
            <p>呼叫无敌小明</p>

            <div class="replay">
                <input type="text" /><button>确定</button>
            </div>
            <a href="javascript:;" class="clos">删除</a>
            <a href="javascript:;" class="clos2">回复</a>
            
        </li>
        <li style="height: auto">
            <h2 class="user">老师说:</h2>
            <p>小明滚出去</p>
            <p>回复的内容</p>
            <a href="javascript:;" class="clos">删除</a>
        </li>
    </ul>
    <script>
        // var arr = [
        //     {
        //         name:"小张",
        //         message:"1111",
        //         replayData:[
        //             "第一条回复内容",
        //             "第二条回复内容"
        //         ]
        //     },
        //     {
        //         name:"小张",
        //         message:"1111",
        //         replayData:[
        //             "第一条回复内容",
        //             "第二条回复内容"
        //         ]
        //     },
        //     {
        //         name:"小张",
        //         message:"1111",
        //         replayData:[
        //             "第一条回复内容",
        //             "第二条回复内容"
        //         ]
        //     }
        // ]


        // 获取先关元素
        var userEle = document.querySelector("#user");
        var messageEle = document.querySelector("#message");
        var btnEle = document.querySelector("#btn");
        var listEle = document.querySelector("#list");

        listEle.innerHTML = "";
        btnEle.onclick = function(){
            // 获取用户名 获取留言信息
            var username = userEle.value;
            var message = messageEle.value;
            var liEle = document.createElement("li");
            liEle.style.height = "auto";
            liEle.innerHTML = `<h2 class="user">${username}说:</h2>
                                <p>${message}</p>
                               
                                <div class="replay">
                                <input type="text" /><button class="sure">确定</button>
                                <button class="cancel">取消</button>
                                 </div>
                                <a href="javascript:;" class="clos">删除</a>
                                <a href="javascript:;" class="clos2">回复</a>`;
            listEle.appendChild(liEle);
            // 获取删除按钮
            var delEle = liEle.querySelector(".clos");
            delEle.onclick = function(){
                // console.log(this.parentElement);
                this.parentElement.remove();
            }

            // 获取回复按钮
            var replayEle = liEle.querySelector(".clos2");
            replayEle.onclick = function(){
                // 1.显示一个input框输入 2.点击确定之后添加到指定位置
                
                var replayEle = this.previousElementSibling.previousElementSibling;
                replayEle.style.display = "block";
                // 回复按钮里的确定和取消
                var sureEle = replayEle.querySelector(".sure");
                sureEle.onclick  = function(){
                    // 获取回复的内容 显示再指定位置
                    // console.log(this.previousElementSibling);
                    var replayVal = this.previousElementSibling.value;
                    // console.log(replayVal);
                    // 创建一个p标签 存放回复的内容
                    var pEle = document.createElement("p");
                    pEle.innerHTML = replayVal;
                    liEle.insertBefore(pEle,replayEle);
                    // 隐藏回复的输入框
                    replayEle.style.display = "none";
                }


                // 点击取消按钮的时候，隐藏回复的输入框
                var cancelEle = replayEle.querySelector(".cancel");
                cancelEle.onclick = function(){
                    replayEle.style.display = "none";
                }
            }

        }




    </script>
   
</div>
<script>
    





</script>
</body>
</html>